Yoko Ono

Yoko Ono took the stand Monday in Federal District Court in Manhattan, where she testified against former personal assistant Frederic Seaman, saying he was sworn to secrecy about her life with John Lennon.

Yoko Ono paid tribute to 9/11 Tuesday on MTV when she pleaded for the world to "Give Peace a Chance." The message coincided with the cable music channel's premiere of a short film by Ono to mark the first anniversary of the terrorist attacks.

John Lennon's widow Yoko Ono said she still felt misunderstood by Beatles fans who blame her for the breakup of the group and for Lennon's search for seclusion in his last years. She also felt hurt and isolated after not being invited to a memorial service for fellow Beatle spouse Linda McCartney seven months ago, she said in an interview with Britain's Express on Tuesday. "I was hurt, yes, but I understand it," she said in the article, published on the 18th anniversary of Lennon's shooting by deranged fan Mark Chapman outside his and Ono's luxury New York apartment. Ono, 65, who was widely accused of causing the Beatles' 1970 split, said Paul's decision not to invite her was not surprising. "I'm still here, but Linda and John are not," she said. "That must hurt very much."

Yoko Ono continued a long feud with a former assistant to John Lennon, suing him Tuesday and claiming he stole priceless personal items after the ex-Beatle was killed. In a federal lawsuit Ono contends that the former aide, Fred Seaman, agreed in 1983 to return boxes of Lennon's personal items but held on to hundreds of photos. The lawsuit was prompted by Seaman's claim in a February letter to Capitol Records that a photograph of Lennon with his son Sean overlooking a beach in Bermuda was improperly included in a recently released CD box set. Seaman said he shot the photo and calls Capitol's use of it "an egregious" copyright infringement. Capitol sued Seaman separately on Tuesday, seeking a declaration that the photo does not infringe on any copyrights.